Offshore Ship Designers (OSD) has launched a new tug design as part of its expanding portfolio of fuel-efficient vessels. The 390 gt Azistern 2870 harbor tug has a hard chine hull form which optimizes energy-saving during transit and results in a very low wash. It has a bollard pull of 70 metric tons and a maximum speed of 12 knots. Providing accommodation for six persons, it has an overall length of 28.3 m, and a breadth of 11.5 m. The Azistern 2870 has been designed with multiple deck equipment options, the installation of which are dependent on specific end-user preference.